Not Starting.

[The Rookie]

Ok, so About 2 weeks ago my car starting shaking like mad during idle and getting sluggish i assumed one or more the fuel injectors where bad, i was right so i ordered a whole new set of injectors, 270CC Like OEM, i let my car sit there for about a week and a half so i got my new injectors today, de-pressurized fuel system, took off the old ones put the new ones back on, went to start my car and nothing, it turns over starter runs but it wont come alive, it did for like 5 secs i gave it gas but it died even with me flooring it, i cant see any visible leaks anywhere near the fuel rail, the fuel filter is a z32 filter about a month old, spark plugs are about a month old as well NGKs I'm not sure on the fuel pump i don't even know how to take it out of the fuel tank, i cant figure out why it wont start, any help would be appreciated.